Gasolene-engine



AB. W. HEJDICKS. GASOLENE ENGINE.` APPucATmN mso MAR. 1, 191s.

Patented Nov. 23, 1920.

3 SHEETS-SHEET l.

B. w. HENDmcks.

GASOLENE ENGINE.

APPLICATION FILED MAR. I, 1918.

mma Nov. 23, 1920.

3 SHEETS-SHEET 2.

5 @N WN f wm E u m B. W. HENDRICKS.

GASOLENE ENGINE. l APPLICATION FILED MAR. l, 191s.

Patented N ov. 23, 1920.

-3 SHEETS-SHEET 3- B. W Hendzbks.

UNHED STA'EES 'RA'EEN'E QFFEQIELVQy Basri. w. Hniviiiticirs., or BARRY, rniiiifors.

GASOLENE-ENGINE.

Specification of Letters Patent. Patggnted 0V.' 23, 1920.

Application filed March 1, 1918. Serial No. 219,939.

clear, and exact description of the inveiif tion, suoli as will enable others skilled in the' art to which it appertains to make and use the same.

This invention relates to improvements in internal combustion engines, and has for one of its objects the provision of a device of this character, which shall be simple, durable and efficient, and which may be manufactured and sold at a comparatively low cost.

Another object of this invention is the provision` of an overhead valve jconstriiction which is capable of producing more power on a less amountof fuel over that of other engines and which will produce an even running engine.

With these and otherobjects in view asV will become more apparent as the descrip,- tion proceeds, the invention consists in certain novel features of construction, combination, and arrangement of parts as will be hereinafter more fully described and claimed.

For a complete understanding of my invention reference is to be had to the follow-v description and accompanying drawings, n

ing

Figure 1 is a plan view ofan engine constructed in accordance with my invention,

Fig. 2 is a side elevation of the same with n one of the fly wheels removed,

Fig. 3 is a longitudinal sectional view illustrating the construction of the piston, Fig. 4 is a fragmentary sectional view of the overhead valve construction, Fig. 5 is a plan view of the same illustrating the valve cage,

Fig. 6 isla detail sectional view of a make and break mechanism for the ignition system.

Referring in detail to the drawings, the numeral 1 indicates a base having mounted thereon a horizontal cylinder 2 in which is reciproeally mounted a piston 3. The piston 3 has connected thereto by means of a wrist pin 4. the usual connecting rod 5. A crank shaft 6 is journaled in the lbase 1 and has connected thereto the connecting rod 5,

. head. I,The valve stem of the intake valve 21- vhas mounted thereon a spring 23 for norrand has mounted upon each end the` usual iy wheel 7. The piston 3 is provided with a plurality of openings or Vapertures 8 for the purpose vof reducing'V the weight of the same. The piston 3 is lubricated within the cylinder 2 by means cfa pipe 9 carrying an cil cup 10. rThe cylinder 2 has formed thereon an annular Iiange 11 which is adapted to support` an ordinary watery jacket. about the cylinder 2 for the purpose of cooling the cylinder and piston and which water jacket is'not shown. A removable head 12 is secured to `the cylinder 2 byy means of bolts or like .fasteners 13 and has a recess or socket 14 in which is positioned a valve cage 15. Theremovable head12 has an intake port 16 and an oppositely disposed exhaust port 17. The lvalve cage 15 is pro-` vided withports that communicate with the i intake port- 16. The valve cage, 15 has formed therein intake and exhaust valveV 80.,

seats y2 0 which receive.k intake and exhaust valves 21. The stemsY of the valves21are slidably mounted in guides 22 which are threaded into openings in thehead 12 per-` mitting the stemsy to extend through the mally holding the same in a seated position. The stemofthe exhaust valve 21 is provided with a spring 24 forthe lpurpose of holding the same in a seated position. A standard 25 is secured to the head -12 and has'pivoted Y thereto a rocker arm 26.A The rocker arm 26 has an adjusting bolt 27 carried by one end whichvis adaptedto'engage the outer end of the valve stem of the exhaust valve'. An actuating rod 28 is pivoted to vtheothei' end of the rocker arm 26 and is slidably mounted in the base 1 and carrying at its other end a roller 29 adapted to engage a cam 30. An arm 31 is pivoted to the base as illustrated at 32 and to the actuating rod 28 adjacent the roller 29 for the purpose of supporting said rod in engagement with the cam 30. The cam 30 is carried by a countershaft 33 iournaled in the base and driven by a gear 34 that meshes `with a gear 35 secured to the crank shaft 6. `The gears 34 and 35 are known as the timing gears and l the burnt charge in the cylinder 2 uponA the scavenging stroke of the piston 3. The cam 33 is adapted to actuate the actuatingrod 28V to rock the arm 26 upon its pivot to unseat Y the exhaust valve. A spring 36 is secured to one end of the rocker arm 26V and to the head 12 for the purpose of holding the roller-29in engagement with the cam 33y at all times.

The head 12 is provided with a threaded opening to receive a spark plu-g3? and the` valve cages 15 has al recess 38 which communicates'wvith the spark plug opening of thehead 12 so that when the spark` occurs between the. electrodes o-f the spark plug, the fuel' Within the' cylinder 2 y"will be ignited; Ani oscillating member 39 is mounted for movement-about the counter-shaft 33 and is =ofsubstantially arcuate shape having rconnected to one end a rod 40l Which is in turn' connected-fte aI cont-rolling' lever 4l.

Thefcontrolling lever 4l'is'1mounted upon a' pivotrl42^carried by thebasel whereby upon rockinglthe lever 4l upon its pivot the posi- Y tion? of' the member 39 can be varied vabout the' counter-shaft. carried-by the pivot 42 'so that the controlling'lever 41" Will beheld againstfaccidental movement; Acontact' 44' isv carried by the member 39 and is vinsulated therefrom by mea-nsof a suitable vinsulating materialy 45 aiid is :adapted "tof cooperate' With a springcontact46f-'carriedby the member 39 and Which'is engaged by a cam 47vcarried byxthev Acounte'r-shaft 'for moving the same into engagementivith the contact 44 to'complete ali-electric circuit.`

Conductors- 44y and 48 are connectedto thefcontacts 44 and theV spark plug 37 respectively and to the primary andV secondfis-soon as they ary of a coil- (nctshoymy elect-ric circuit 1s' completed tothe spark plug, aspark is produced which ignites then fuel Within the cylinder' 2 By having the member' 39mo'vable about tie counter-shaft 33- and"controlled by the controlling lever 41 provides'm'eans whereby the-'sparks may be advanced and retardedas desired. The manifold 19*Y may have connected thereto any' desired 'type' 'of lfuel 'tank' as illustrated A tension means 43 is at 49 for the purpose'fof furnishing the manifold or carbureter 50 with explosive fuel,.such as gasolene or the like.

In operation upon'the suction stroke of the piston 3, the intake valve 2l is opened permitting the fuel from the carbureter to enter the cylinder. The piston 3 then. moves inthe direction of the head 12 compressing the charge. Whenthe charge has been compressed, the cam 47 moves the contact 46 in engagement With-the contact'44 complet-ing an elect-ric -circuit to the spark plugl thus exploding the charge Within thel cylinder 2 which forces-the piston away from the head l2 driving the crankshaft. Thel cam30 then moves-the actuating rod 28 Which'rocks the arm 26 uoon its pivot' opening the 'exhaust valve permitting the bur-nt chargeto Y 'escape' through theexhaust pipe-185 lVhile I have shovvnl and describedthev preferred embodiment of my invention, it

exhaust ports, an igniter' opening formed i in said head, said ignite'r opening'adaptedI to receive'an igniter, a cage located in said recess and li`aving-"passages V communicating with the intake and "exhaust" ports and theY ignit'er opening, valve seats formed in a pair of the passages, sleeves threaded inthe pair ofl passages and extending through one facel ofthe head, and self-closing valves inthe passages engaging the valveseats `and havtheir' stemsY extending through the sleeves.

In testimony whereof I ailix my signature in presence of tivo Witnesses'. i

BASIL IV. HENDRICKS. Witnesses:

LEWIs E. MCINTIRE, JAMES BOYD. 

